miércoles, 17 de septiembre de 2014

Thevignettingis a technique which simulates a kind ofeffect caused by traditional cameralens on its pictures. It consists of thecorners of the imageappear dimmed. Digital camerasmimicsthis effect to givean artistic touchto the photo.

After that I have used a Blur node to create a gradient between the white and black parts of my mask. In my tests I have used the Fast Gaussian method of the node, but for your final version you can use other methods, which are slower but produce better results.

We can change the black border by a dark version of the render, as it ocurrs in photographic cameras. I have used a Hue Saturation Value node, increasing the Saturation parameter and decreasing the Value parameter. The Invert node is not needed here (you only have to change de image order in the Mix node), but if you want to test other mix modes like Overlay or Darken, it's needed using the Mix node on this way.